A multivariate LDPC decoding algorithm based on feedback

• Main Authors: WANG RUOLIN, YE FANG, CHE FEI, SHAO SHIJIA, BAI PING, TIAN YUAN, GUO XIAOCHEN, SUN QIAN
• Format: Patent
• Language: Chinese; English
• Published: 14.12.2018
• Subjects: BASIC ELECTRONIC CIRCUITRY; CODE CONVERSION IN GENERAL; CODING; DECODING; ELECTRICITY

The invention belongs to the technical field of channel decoding, in particular to a multivariate LDPC decoding algorithm based on feedback thought. The invention combines the feedback idea of the joint iterative decoding algorithm with the traditional EMS algorithm, through the calculation of stability and reliability parameters, the decision result of a single iteration is judged, and the updateinformation of the next iteration is corrected, which suppresses the LLR oscillation, makes the message vector provide more correct information, accelerates the convergence speed of decoding, and improves the decoding accuracy. 本发明属于信道译码技术领域，具体涉及种基于反馈思想的多元LDPC译码算法。本发明将联合迭代译码算法的反馈思想与传统EMS算法相结合，通过稳定度和可靠度参数的计算，对单次迭代的判决结果进行判断，并修正下次迭代的更新信息，从而抑制了LLR震荡，使消息向量提供更多的正确信息并加快了译码的收敛速度，提高了译码准确性。